MRV7T

Free choice communication wiring sequence:
In addition to the traditional hand in hand connection, the communication wire supports four connection ways, star connection, ring connection and tree connection, which greatly reduces the installation limitations.
1192 Communication protocol.Compared with the ordinary communication protocol, the communication rate has been greatly improved, there will be no delay reaction.

Continuous system operation in case of partial unit power outage:
When an indoor unit is powered off, the VRF system can continue to run without reporting the fault and do not affect the operation of other indoor units. (less than 10 indoor units are allowed to lose power)

Models above 8HP come standard with EVI DC inverter compressors, increase the refrigerant circulation and performance by 15%. Independently developed drive control motherboard, 180-degree sine wave drive technology, improving overall machine effciency by up to 30%.

When the guest leaves the hotel room and remove the card to power off the MRV indoor unit, the EEV in the indoor unit may not be fully closed, thus the indoor unit evaporator freezes because of excess cooling capacity. The built-in multitenant site using separate circuit breaker for each indoor unit to close the EEV.

VPC2.0 frequency control technology, 3 in 1 chip design, integrated control, aerospace-grade DC-link solid-state capacitor, the service life is increased by 3 times.

IP55 grade protection ensures the stable operation of the electrical control system. the rotatable electric control box design make it easy to repair the components behind the electrical control box, only to loosen the screws on the right side of the control box to swing it out.
Black fin (optional).

Advanced VRA technology Automatic variable refrigerant adjustment according to ambient conditions, the cooling capacity or cooling load of the air conditioner is adjusted according to different outdoor temperatures. Advanced VRA technology adds correction to the evaporation temperature of the current mode to improve energy efficiency under the current modes.

Direct refrigerant cooled PCB:
Refrigerant directly into the fin interior, the fin cooling compressor drive module, reduce a layer of heat resistance. Under the same operating condition, the temperature of the compressor drive module is lower than 8°C, to ensure that the whole unit can continue to work under the high temperature.

Smart backup operation:
The compressors in the same unit serve as backups for each other. Even if one of the compressors breaks down, the unit can still operate. For the multi-module combination, in case of breakdown of one outdoor unit, the other modules can continue to operate. The backup operation time can reach up to 15 days.

Simple addressing IDU
Use automatic addressing mode to set IDU and ODU addresses. If the AC system is powered off, the original address wibe retained, solve the pain point of resettng the address after the power faiure.
Use the indoor unt PCB board dip set addressing.
Use wired controller set the indoor unit addressing.

Max. total pipe length 1200m
Max. actual pipe length 220m
Max. equivalent pipe length 260m
110m drop height between ODUs and IDUs
40m drop height between IDUs

Professional selection software facilitates the design of project.

Real-time parameters monitor.
Parameters record, download and print the record.
Fault list and quick trouble shooting.
Installation check list.
Start-up report.
On-site parameters setting.
Mobile phone with Android or iOS system.